Exhibit 12.1

Southern Union Company

Computation of Ratio of Earnings to Fixed Charges

(in millions, except for ratio amounts)

(Unaudited)

The following table sets forth the ratio of earnings to fixed charges for Southern Union on a historical basis for the period from March 26, 2012 to December 31, 2012, the period from January 1, 2012 to March 25, 2012, and the years ended December 31, 2011, 2010, 2009 and 2008. For the purpose of calculating such ratios, “earnings” consist of pre-tax income from continuing operations before income or loss from equity investees, adjusted to reflect distributed income from equity investments, and fixed charges, less capitalized interest. “Fixed charges” consist of interest costs, amortization of debt discount, premiums and issuance costs and an estimate of interest implicit in rentals. No adjustment has been made to earnings for the amortization of capital interest for the periods presented as such amount is immaterial. Interest on FIN 48 liabilities is excluded from the computation of fixed charges as it is recorded by Southern Union in income tax expense versus interest expense.

	Successor			Predecessor
	Period from Acquisition (March 26, 2012) to December 31, 2012			Period from January 1, 2012 to March 25, 2012		Years Ended December 31,
						2011			2010			2009			2008
Fixed Charges:
Interest expense, net	$	130		$	50	$	217		$	210		$	191		$	204
Net amortization of debt discount, premium and issuance expense	(24		)	2		6			7			6			3
Capitalized interest	1			—		1			7			26			19
Interest charges included in rental expense	5			2		7			6			6			5
Total fixed charges	112			54		231			230			229			231
Earnings:
Consolidated pre-tax income from continuing operations	50			45		294			278			177			332
Less: earnings (losses) from unconsolidated investments	(7		)	16		99			105			81			75
Total earnings	57			29		195			173			96			257
Add:
Fixed charges	112			54		231			230			229			231
Distributed income of equity investees	(6		)	—		3			4			—			77
Less:
Interest capitalized	(1		)	—		(1		)	(7		)	(26		)	(19		)
Income available for fixed charges	$	162		$	83	$	428		$	400		$	299		$	546
Ratio of earnings to fixed charges	1.45			1.54		1.85			1.74			1.31			2.36